🚨 2025 observed the lowest #Arctic sea-ice extent AND the lowest sea-ice volume for their yearly average values. This comes as no surprise to me as the polar environment continues to change. The consequences are far-reaching.

More graphics & stats already on my website: zacklabe.com/arctic-sea-i...

Last month's total #Arctic sea ice volume averaged the *lowest* on record for the month of December...

More at zacklabe.com/arctic-sea-i...

Watch 100 years of December sea surface temperature anomalies updated through 2025. There's a lot of year-to-year variability, but a clear long-term warm signal is evident over time due to human-caused climate change. 🌊

Data from psl.noaa.gov/data/gridded...

Last month was statistically tied for the 5th lowest #Antarctic sea ice extent on record for the month of December.

This was 1,190,000 km² below the 1981-2010 December average. Data from the @nsidc.bsky.social at nsidc.org/data/seaice_...